FancyTracker-FF

Name: FancyTracker-FF
Author: Erik Zettergren

By: Erik Zettergren

A browser extension for monitoring and analyzing PostMessages and listeners in web pages.

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Install

Features & Capabilities

This is a modern adaptation of the original postMessage-tracker by Frans Rosén. The base logic and functionality still exists (at least it should work the same), although it has been built upon quite a lot.

A LOT of vibing has been going on in here, especially for this port over to Firefox due to repeated requests of the original chrome version over at https://github.com/Zeetaz/FancyTracker.

User Growth & Download Statistics

Add-on

By:

Erik Zettergren

Daily users:

160 -1

Version:

1.1.0 Last updated: 2025-09-12

Version code:

6031092

Creation date:

2025-09-09

Risk:

Permissions:

Host permissions:

*://*/*

Content scripts matches:

<all_urls>

Size:

1.91MB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-18

Compare stats and ranking:

Ranking

# 8,952 ▼ 46

Other rankings

#14 in fansly keyword 4

#55 in tracker keyword 59

#111 in listen keyword 28

#113 in hacker keyword 26 ▲ 2

#203 in exist keyword 24 ▼ 7

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For Developers

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Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Erik Zettergren

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/fancytracker-ff/

Website:

https://github.com/Zeetaz/FancyTracker-FF

Is FancyTracker-FF Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

FancyTracker-FF requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

FancyTracker-FF is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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